Lighting unit



FIG. 1 is a front, perspective underneath view showing my new design;

FIG. 2 is a rear, perspective underneath view thereof;

FIG. 3 is a perspective, side elevational view thereof;

FIG. 4 is a perspective, front elevational top view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is an inverted, rear elevational top view thereof;

FIG. 7 is a perspective, front elevational view thereof, taken from above and the right;

FIG. 8 is a perspective, front elevational view thereof, taken from above and the left;

FIG. 9 is an underneath perspective side elevational view thereof;

FIG. 10 is a top perspective side elevational view thereof;

FIG. 11 is a plan view thereof; and,

FIG. 12 is an underneath view thereof.

The broken lines shown on the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a lighting unit, as shown and described. 